.middle > div {
    border: 1px solid gray;
}

.middle > div > div:nth-child(2) {
    padding: 10px;
    overflow: hidden;
}

.middle > div > div:nth-child(2) > div:first-child > div {
    text-indent: 3em;
    margin: 10px 0;
    line-height: 30px;
}

.middle > div > div:nth-child(2) > div:nth-child(2) > img {
    margin: 10px;
}

.middle > div > div:nth-child(2) > div:nth-child(2) {

    animation: marginLeft linear 10s infinite normal;
    -webkit-animation: marginLeft linear 10s infinite normal;
    display: flex;
    justify-content: flex-start;

}

@keyframes marginLeft {
    0% {
        margin-left: 0;
    }


    33.3% {
        margin-left: -600px;
    }

    62% {
        margin-left: -600px;
    }


    100% {
        margin-left: 0;
    }
}